Title:
METHOD AND APPARATUS FOR ROLL MOLDING OF LAMINATED METAL PANEL
Document Type and Number:
Japanese Patent JP3214271
Kind Code:
B2
Abstract:
PURPOSE: To prevent not only the generation of a wavy defect such as a pocket wave or an edge wave at the time of the roll molding of a laminated metal panel but also the deterioration of dimensional accuracy caused by the spring back of a bending corner part.
CONSTITUTION: In a method subjecting a lamainated metal panel formed by bonding two metal panels through a viscoelastic substance with a thickness tr of 0.01mm or more to roll molding using stand groups arranged in a tandem state, the roll clearance of first and final stage stands is set to the range from [total thickness (t) thickness tr of viscoelastic substance/31mm to below (t) mum when the total thickness of the laminated metal panel is set to (t) and the roll clearance of other molding stands is set to 1.0-2.0 times the total thickness (t) of the laminated metal panel.
Inventors:
Kuniyasu Oishi
Takashi Suzuki
Takashi Suzuki
Application Number:
JP32346794A
Publication Date:
October 02, 2001
Filing Date:
December 27, 1994
Export Citation:
Assignee:
Nippon Steel Tube Co., Ltd.
International Classes:
B21D47/04; B29C53/28; B32B15/08; (IPC1-7): B29C53/28; B21D47/04; B32B15/08
Attorney, Agent or Firm:
Takehiko Suzue
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